Hot melt colored ink
CA 2221486 C · Owner: Dai Nippon Printing Co. Ltd. · Inventors: Kimura, Masakazu; Takamura, Yoshio; Naito, Nobuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hot melt colored ink comprising: a coloring component being at least one selected from the group consisting of carbon black, an inorganic pigment an, organic pigment, a dye and an inorganic extender pigment; phytosterol and/or a derivative thereof in an amount of 0.1 to 90% by weight of the hot melt. colored ink; and optionally a thermoplastic resin in an amount of 1 to 80% by weight of the hot melt colored ink. According to the hot melt colored ink of the present invention various, disadvantages found in conventional hot melt colored ink such as grime, patchy, unsharpness and stain of transferred print (transferred image) does not occur and a print evenness and a performance (a quality …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 15, 1996 and granted March 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.